Image of Comet C/2011 W3 (Lovejoy) as seen by the Hinode Satellite

The image above is from the Solar Optical Telescope on Hinod, made using a Sodium-D filter, and shows emission from a plasma at about 6-10,000 Kelvin. The comet is clearly visible in the image, and the core of the comet is resolved by the instrument and is about 100km in diameter with a tail about 3000km long.
Image credit: JAXA/Hinode/LMSAL